Hi Guys
I wonder if you can assist. A buddy of mine has a 2011 G6 GTi DSG. The engine light kept comming on intermittently. The car was stock at the time. When I scanned the car for codes, it brought up: P0172 - System too rich (Bank 1). The mech recommended that we replace the charcoal canister. We also did a complete service (oil, oil filter and plugs). The car seemed fine after this.
The car was then modded (DP, CAI, S/W). It was fine for a week, then the engine light came back with the same error. The car is terribly heavy on fuel (R1000 gives him 350kms- in town short distance driving) and recently has been hard starting on first start up. My buddy always found that his G6 was heavy on fuel from brand new, but he was told by VW that the consumption was normal.
I've checked online and there's a range of things that could be wrong :
16556/P0172 - System Too Rich, Bank 1
Possible Symptoms
Irregular behavior
Possible Causes
Fuel system
Excessive fuel pressure
Leaking or contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Air leaks after the MAF
Vacuum leaks
Improper seated engine oil dipstick
Stuck EGR valve
Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near HO2Ss.
Has anyone had a similar issue and could possibly advise me where to start?
Thanks
Golf 6 Gti P0172 Error
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- Cadet
- Posts: 356
- Registered for: 15 years 7 months
- Car Make: VW
- Car Model: Mk2 GTS
- Membership No: missing
- Location: Mulbarton
Re: Golf 6 Gti P0172 Error
There is something wrong on your tune.
Current:
Mk2 GTS 1.8 --> 2.0 16v MP9 --> Soon to be 2.1 16v MP9 with Throttles
S3 2003 BAM --> Stage 1 with full Exhaust
S4 2004 --> Stock
A3 2010 1.8T Cabrio --> Stock
//////
Previous
Golf Citi 2.0 8v MP9 2007
Jetta 4 V5 10V
Honda CB400 '74
Mk2 GTS 1.8 --> 2.0 16v MP9 --> Soon to be 2.1 16v MP9 with Throttles
S3 2003 BAM --> Stage 1 with full Exhaust
S4 2004 --> Stock
A3 2010 1.8T Cabrio --> Stock
//////
Previous
Golf Citi 2.0 8v MP9 2007
Jetta 4 V5 10V
Honda CB400 '74
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- Cadet
- Posts: 54
- Registered for: 9 years
- Location: Johannesburg
Re: Golf 6 Gti P0172 Error
Thanks for the feedback. We thought that initially, but the error was there before the software was loaded. Going to flash back to stock and try and troubleshoot from there.
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- VWCSA Member
- Posts: 2190
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- Car Make: Toyota
- Car Model: Corolla D4-D
- Membership No: 2016
- Location: Roodepoort
- Contact:
Re: Golf 6 Gti P0172 Error
Lambda?
Sent from my CPH1717 using Tapatalk
Sent from my CPH1717 using Tapatalk
Current:
2017 Toyota Corolla D4-D Ultimate Performance Tuned
2013 A3 1.6 TDi S-Tronic 8V.1
EX:
2014 Polo 1.2 TSI Comfortline CPi Tuned
2013 Ford Focus 2.0 Sport
2011 Hyundai i20 1.4
2006 Toyota RunX
2017 Toyota Corolla D4-D Ultimate Performance Tuned
2013 A3 1.6 TDi S-Tronic 8V.1
EX:
2014 Polo 1.2 TSI Comfortline CPi Tuned
2013 Ford Focus 2.0 Sport
2011 Hyundai i20 1.4
2006 Toyota RunX
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- Cadet
- Posts: 107
- Registered for: 10 years 2 months
- Location: Windhoek, Namibia
Re: Golf 6 Gti P0172 Error
Hey bud,K04 wrote: ↑Fri Sep 07, 2018 12:33 pm Hi Guys
I wonder if you can assist. A buddy of mine has a 2011 G6 GTi DSG. The engine light kept comming on intermittently. The car was stock at the time. When I scanned the car for codes, it brought up: P0172 - System too rich (Bank 1). The mech recommended that we replace the charcoal canister. We also did a complete service (oil, oil filter and plugs). The car seemed fine after this.
The car was then modded (DP, CAI, S/W). It was fine for a week, then the engine light came back with the same error. The car is terribly heavy on fuel (R1000 gives him 350kms- in town short distance driving) and recently has been hard starting on first start up. My buddy always found that his G6 was heavy on fuel from brand new, but he was told by VW that the consumption was normal.
I've checked online and there's a range of things that could be wrong :
16556/P0172 - System Too Rich, Bank 1
Possible Symptoms
Irregular behavior
Possible Causes
Fuel system
Excessive fuel pressure
Leaking or contaminated fuel injectors
Leaking fuel pressure regulator
Low fuel pressure or running out of fuel
Vapor recovery system
Air leaks after the MAF
Vacuum leaks
Improper seated engine oil dipstick
Stuck EGR valve
Oil overfill
Cam timing
Cylinder compression
Exhaust leaks before or near HO2Ss.
Has anyone had a similar issue and could possibly advise me where to start?
Thanks
I would like to know if you managed to resolve this issue or not?
My brother has a 2012 mk6 gti with the same error code. It has been coming on and off for about 12 months and no one seems to know how to fix it. Even on the online overseas forums guys seem to struggle to resolve this specific issue.
On my brothers car its intermittent and comes on and off randomly. There are no visible effects but it surely cant be good in the long run.
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- Enlisted
- Posts: 23
- Registered for: 7 years 11 months
- Location: Pietermaritzburg
Re: Golf 6 Gti P0172 Error
Hi Guys.
Maybe this may help this thread.
In Nov 2011 my G6 Gti picked up a erratic idle. Car would idle up and down to 2000rpm.
Due to work commitments I eventually tackled the car just before xmas.
I cant remember the actual code but it was along the lines of leak in intake system.
We found no leaks. Changed the pcv which did not help.
Turned out to be the maf sensor. Might be worth checking. I used isopropyl alcohol to clean it and car was perfect. Cleared the fault and have not had that issue since
Thanks for reading
Maybe this may help this thread.
In Nov 2011 my G6 Gti picked up a erratic idle. Car would idle up and down to 2000rpm.
Due to work commitments I eventually tackled the car just before xmas.
I cant remember the actual code but it was along the lines of leak in intake system.
We found no leaks. Changed the pcv which did not help.
Turned out to be the maf sensor. Might be worth checking. I used isopropyl alcohol to clean it and car was perfect. Cleared the fault and have not had that issue since
Thanks for reading
-
- Cadet
- Posts: 107
- Registered for: 10 years 2 months
- Location: Windhoek, Namibia
Re: Golf 6 Gti P0172 Error
Hello,NH 9821 wrote: ↑Sat Feb 23, 2019 6:48 am Hi Guys.
Maybe this may help this thread.
In Nov 2011 my G6 Gti picked up a erratic idle. Car would idle up and down to 2000rpm.
Due to work commitments I eventually tackled the car just before xmas.
I cant remember the actual code but it was along the lines of leak in intake system.
We found no leaks. Changed the pcv which did not help.
Turned out to be the maf sensor. Might be worth checking. I used isopropyl alcohol to clean it and car was perfect. Cleared the fault and have not had that issue since
Thanks for reading
Thanks a lot for your input, we'll give that a try.
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- Enlisted
- Posts: 23
- Registered for: 7 years 11 months
- Location: Pietermaritzburg
Re: Golf 6 Gti P0172 Error
You welcome